Field help:
Have you claimed tax reductions for work done by tradesmen in accordance with sect. 35a of the Income Tax Act (EStG) for the energy-efficiency measures?
Select "yes" if you have already applied for the tax benefit under § 10f EStG for the same energy efficiency measure.
This applies to measures on owner-occupied listed buildings or buildings in a redevelopment area or urban development zone.
A tax reduction under § 35c EStG is not possible for the same measure.